My Hero: Matuphoom Haeng Huajai is the first installment of the 'My Hero' series, focusing on the life of Lieutenant Colonel Techit, a dedicated intelligence officer. Tasked with a dangerous mission to dismantle a transnational drug trafficking network, Techit goes undercover to infiltrate the criminal organization. His professional life becomes increasingly complicated when he crosses paths with Apsorn, a woman from his past who is now a journalist investigating the same syndicate. As the mission intensifies, Techit must balance his duty to protect the nation with his growing feelings for Apsorn. The series explores themes of patriotism, sacrifice, and the moral dilemmas faced by those in the line of duty. Amidst high-stakes action and political intrigue, the protagonists must navigate betrayal and danger to ensure justice is served while fighting for their chance at love.